Vulcanizing apparatus



2 192 March 2 7 J. F. MINCHER VULCANIZING APPARATUS Filed Aug. 21, 1922 BY I N RNEY Puma Mar. 22,1927.

UNITED STATES PATENT oFIcE.

.TOSEPH'F. MINCHER, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO THE FISK RUBBER COMIPANY, 0F GHICOPEE FALLS, MASSACHUSETTS, CORPORATION OF MASSACHU- SETTS.

VULCANIZING APPARATUS.

Application filed. August 21, 1922. Serial No. 583,399.

are at substantially the lowest point of the annulus. In the drawings accompanying 13 this specification and forming a part thereoi I have shown, for purposes of illustration,-

one form which my In these drawings:

Figure 1 shows a mandrel supported in accordance with this illustrative embodi- .ment, while v V Figure 2 shows in more detail the connection between the mandrel support and the mandrel.

In the drawings I haveshown a mandrel 1O closed at one end 11 by a. plug 12 having a rectangular aperture 13 adapted to receive the correspondingly shaped end 14 of a hanger 15 which is provided with an ofiset 16 adapted to clear the upper portionof the mandrel 10. This hanger 15 may be supported in any suitable manner as 'by a bracket 17 secured to the upper end of the offset 16 and carrying a pulley 18 adapted invention may assume.

to ride on a track 19. The other end 20 of the mandrel 10 may be left freely open to permit condensation to escape and if desired an aperture 21 may be formed in the plug 12 for the same purpose and also to permit free circulation of steam through the mandrel during curing. To facilitate applying the tube to the mandrel and stripping the tube fromthe mandrel, the aperture 13,and also the aperture 21 if present, may be plugged during these. operations. 'Inas-' much, however, as the tube ordinarily does not come to the ends of the mandrel 10 the usual amount of condensation, even it re tainedin the ends 11 and 20, will not cool the mandrel over any portion of the area covered by the tube and therefore will have no appreciable effect on the vulcanization of the tube.

While I have illustrated herein one form which my invention may assume this disclosure is illustrative only and my invention is not limited thereto.

I claim:

1. Means for supporting a circular mandrel comprising a hanger adapted to engage one end of the mandrel and extended beyond and across the mandrel circumference to permit free suspension of the mandrel. a

2. Means for supporting a circular mandrel comprising a hanger adapted to nonrotatably engage one end of the mandrel and extended diametrically across and beyond the circumferen'ce of themandrel to permit free suspension thereof.

3. Means for supporting a circular mandrel comprising a hanger adapted to non rotatably engage one end of the mandrel and extended across and beyond the circumference of the mandrel to permit tree suspension thereof. g

4:. 'Means for supporting a circular mandrel comprising a hanger adapted to engage one end of the mandrel and provided with an ofi'set to encircle the mandrel at a point remote from this point of engagement therewith. r

5. Means for supporting a circular mandrel comprising a hanger adapted to be removably secured to one end of the mandrel and extended across and beyondthe circ'unr' ference of the mandrel to permit free sus- 

